Visual control of posture during walking: functional specificity.

Visual control of posture during walking: functional specificity.
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行走过程中姿势的视觉控制:功能特异性。

DOI:
10.1037//0096-1523.22.4.818
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发表时间:
1996
期刊:
Journal of experimental psychology. Human perception and performance
影响因子:
--
通讯作者:
Yilmaz,EH
Yilmaz,EH
中科院分区:
--
文献类型:
--
作者:
Warren,WH;Kay,BA;Yilmaz,EH

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三个实验通过向在跑步机上行走的参与者展示大屏幕显示来检查运动过程中视觉控制姿势的功能特异性。显示沿静止的走廊、随观察者移动的走廊或随观察者移动的正面墙的模拟运动。一个叠加振荡指定了6个可能方向的姿势摇摆。在所有条件下,有壁面的摇摆振幅都是各向同性和方向特异性的。然而,在走廊中,摇摆是各向异性的(侧>前后[AP]),对角线响应被扁平化到外侧平面。当跑步机转90度到走廊时,各向异性和平坦性都被逆转(AP>横向),表明它们是由场景的视觉结构决定的。结果可以用基于光学膨胀和运动视差的姿势控制律来解释,在平面环境中产生的偏差会截断视差。(PsycInfo数据库记录(c) 2024 APA,版权所有)
Three experiments examined the functional specificity of visually controlled posture during locomotion by presenting large-screen displays to participants walking on a treadmill. Displays simulated locomotion down a stationary hallway, a hallway that traveled with the observer, or a frontal wall that traveled with the observer. A superimposed oscillation specified postural sway in 6 possible directions. With the wall, sway amplitude was isotropic and directionally specific in all conditions. However, with the hallways, sway was anisotropic (lateral> anterior-posterior [AP]), and diagonal responses were flattened into the lateral plane. When the treadmill was turned 90 to the hallway, both the anisotropy and flattening were reversed (AP> lateral), indicating that they are determined by the visual structure of the scene. The results can be explained by postural control laws based on both optical expansion and motion parallax, yielding biases in planar environments that truncate parallax.(PsycInfo Database Record (c) 2024 APA, all rights reserved)
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DOI: 10.1111/j.2044-835x.1989.tb00800.x
发表时间: 1989
期刊: British Journal of Development Psychology
影响因子: --
作者:
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通讯作者: GROSS, CG
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期刊:
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DOI: 10.1037/0096-1523.14.4.646
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期刊: Journal of experimental psychology. Human perception and performance
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